/*
*    Qizx/open 3.0 beta
*
* This code is the open-source version of Qizx.
* Copyright (C) 2004-2009 Axyana Software -- All rights reserved.
*
* The contents of this file are subject to the Mozilla Public License 
*  Version 1.1 (the "License"); you may not use this file except in 
*  compliance with the License. You may obtain a copy of the License at
*  http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
*  WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
*  for the specific language governing rights and limitations under the
*  License.
*
* The Initial Developer of the Original Code is Xavier Franc - Axyana Software.
*
*/
using System;
namespace System.Qizx.Api.Util
{
	
	/// <summary> Representation of a GMonth item value.</summary>
	[Serializable]
	public class GMonth:XQDateTimeBase
	{
		public GMonth(int month, int tzSign, int tzHour, int tzMinute):base(EPOCH, month, 1, 0, 0, 0, tzSign, tzHour, tzMinute)
		{
			// add controls here
		}
		
		public GMonth(XQDateTimeBase dt):this(dt.month, dt.tzSign, dt.tzHour, dt.tzMinute)
		{
		}
		
		public override XQDateTimeBase Parse(string that)
		{
			return parseGMonth(that);
		}
		
		public static GMonth parseGMonth(string s)
		{
			int month;
			int[] tz = new int[3];
			
			if (!s.StartsWith("--"))
				throw new XQDateTimeException("invalid gMonth syntax", s);
			
			int pos = 2;
			int tzPos = ParseTimeZone(s, pos, tz);
			if (tzPos != pos + 2)
				throw new XQDateTimeException("invalid gMonth syntax", s);
			month = ParseInt(s, pos, tzPos);
			
			return new GMonth(month, tz[0], tz[1], tz[2]);
		}
		
		public override string ToString()
		{
			System.Text.StringBuilder buffer = new System.Text.StringBuilder();
			buffer.Append("--");
			appendPadded(month, 2, buffer);
			appendTimeZone(tzSign, tzHour, tzMinute, buffer);
			return buffer.ToString();
		}
	}
}